| commit | 98b69bccadeae2fb64adde8ff008f79ec5963381 | |
| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Tue, 30 Jun 2015 11:58:48 +0000 (30 11:58 +0000) | ||
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | |
| Tue, 30 Jun 2015 11:58:48 +0000 (30 11:58 +0000) | ||
| tree | f7cd6a66425a4813b96dd9a091c09540c5b92b2e | treesnapshot (tar.gz zip) |
| parent | d7a904bc5095619f4baa84acdf6d08ee67f693bf | commitdiff |
2015-06-30 Richard Biener <rguenther@suse.de>
* fold-const.c (fold_unary_loc): Move abs(abs(x)) -> abs(x),
~ (-A) to A - 1, ~ (A - 1) or ~ (A + -1) to -A and some cases of
~(X ^ Y) to ~X ^ Y or X ^ ~Y if ~X or ~Y simplify to ...
* match.pd: ... here.
Add a few cases of A - B -> A + (-B) when B "easily" negates.
Move (x & y) | x -> x and friends before
(x | CST1) & CST2 -> (x & CST2) | (CST1 & CST2).
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@225178 138bc75d-0d04-0410-961f-82ee72b054a4
* fold-const.c (fold_unary_loc): Move abs(abs(x)) -> abs(x),
~ (-A) to A - 1, ~ (A - 1) or ~ (A + -1) to -A and some cases of
~(X ^ Y) to ~X ^ Y or X ^ ~Y if ~X or ~Y simplify to ...
* match.pd: ... here.
Add a few cases of A - B -> A + (-B) when B "easily" negates.
Move (x & y) | x -> x and friends before
(x | CST1) & CST2 -> (x & CST2) | (CST1 & CST2).
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@225178 138bc75d-0d04-0410-961f-82ee72b054a4
| gcc/ChangeLog | diffblobblamehistory | |
| gcc/fold-const.c | diffblobblamehistory | |
| gcc/match.pd | diffblobblamehistory |